Lamp and support for same.



J. T. BEECHLYN.

LAMP AND SUPPORT FOR SAME.

APPLICATION FILED NOV. 23.1911.

Patented Sept. 14, 1915.

3 SHEETS-SHEET HIS DTttorneg.

Inventor John T. Beechl Witnesses: W Z 3% I I. T. BEECHLYN.

LAMP AND SUPPORT FOR SAME.

APPLICATION FILED NOV.23| I9II.

1,153,284. Patented Sept. 14, 1915.

3 SHEETSSHEET 2.

Fig. 2;.

Witnesses: Inventor:

John T. Behlgn,

His flt'torneg.

J. T. BEECHLYN.

LAMP AND SUPPORT FOR SAME.

APPLICATION FILED NOV. 23| 1911.

Patented Sept. 14, 1915.

3 SHEETS-SHEE13.

Fig.6.

Fig. 5.

UNITED STATES. PATENT OFFICE.

JOHN '1. BEECHLYN, OE LYNN, MASSACHUSETTS, ASSIGNOR TO GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.

TiAMP AND SUPPORT FOR SAME.

I Specification. of Letters Patent.

Patented se t m, 1915.

Application filed November 23, 1911. Serial No. 661,884.

To all whom it may concern Be it known that I, JOHN T. BEEOHLYN, a citizen of the United States, residing at Lynn, county of Essex, State of Massachusetts, have invented certain new and useful Improvements in Ilam'ps and Supports for Same, of which the following is a specification.

My invention has reference to an arc lamp, and particularly to a lamp of the inverted type, in which the operating mechanism for the electrodes is located below the arc and are globe, and the lamp is mounted upon a post orother support. The operating mechanism'is surrounded by anornamental casing, so formed with respect to the rest ofthe lighting unit as to harmonize therewith in appearance. It is so made that it may be readily removed from around the operating portions of the lamp, thereby exposing said parts and making them readily accessible. I

I have shown my invention embodied in an arc lamp of the flaming or luminous type, in which fumes carrying solidifiable products of combustion are emitted at the arcand in which special provision must be made for carrying such fumes away from the lamp. The globe is provided at the top-with an opening which is closed by a plate,

-- through which passes a chimney for carrying away the fumes from the arc. This chimney, upon the lower end of which a non-consuming electrode is mounted, is carried by a supporting member which tele-' scopes with a second member supported by the frame of the lamp, whereby the chimney and the parts connected thereto can readily be lifted away from thelower' electrode, thus giving access to the upper and lower electrodes and to the interior of the chimney.

Other novel features of my invention will appear in'the specification andare particularly pointed out in theclaims.

In the drawings, Figure 1 is a vertical sectional view showing certain portions in elevation Fig. 2 is an elevation, partly in vertical section, showing the operating magnets, the dash-pots and the clutch in operating relation; Fig. 3 is a plan view of the clutch showing the two parts of which it is composed, separated; Fig. 4 is a detail view showing the position occupied by the chimney and the parts connected thereto when the same is raised and turnedfor the purpose of trimming the lamp; Fig. 5 is adeta1l perspective view of the lower end of the support for the chimney; Fig. 6 is a detail view showing the connection between \the supporting sleeve and the rod which telescopes therewith and supports the chimney and connected parts; Fig. 7 is an elevation of the detail shown in Fig. 5, and Fig. 8 is a diagram of connections.

Referring to the drawings, 1 is a support, usually in the form of a postor column of ornamental design. Upon this support is gounted and suitably secured an annular 1 sulating member, 2 upon which the arc lamp mechanism is in turn mounted. The frame of the lamp comprises lower and upper plates 3 and 4, respectively, which are connected together by spacing rods 5 (only' one of which is. shown in the drawing). The lower plate 3 is mounted upon the insulating member 2 and secured thereto by bolts 3. The globe 7, which is open at the bottom, is seated upon the insulating ring. The operating mechanism 8 of the lamp is mounted upon the frame of the lamp below the globe and above the insulating member 2. This mechanism is surrounded by an ornamental casing 9, which forms the capital of the post and mayconveniently be formed of upper and lower sections 9*- and 9*, respectively. The upper end of the casing is received within a recess in the lower portion 6 of the insulating ring 6. The casing is supported in position about the operating mechanism by springs 10, 10, which are biased inwardly and normally engage the insulating member 2. These springs are provided with handles 11, by which they may be withdrawn from engagement with the insulating member and the casing lowcred into telescoping relation with the post or column 1." The upper portion of the casing is provided with an inwardly extending flange 12, which has an inner diameter less than the top of the insulating member 2 and which engages the insulating member when the casing is in its lowered position.

A lower electrode 13,006perates wlth an upper electrode 14. I have illustrated my 1 electrode of the non-consuming type. The

lower electrode 13 is carried by a rod 15, which rod is received Within a tube 16 suitably secured to the lower plate 3 at 16*. The operating magnet for the lamp is indicated at 17 and 'is provided withan armature 18, the lower ends of the two members of which are connected by a yoke 19. Downwardly projecting pins 20 are secured to the yoke 19 by studs 21 which are provided with spaced collars 21. The clutch 22 comprises two members 23, having two prongs 24 at their inner ends. The outer prong of each member is provided with an inwardly extending pin 25, which is received within a corresponding opening in the opposite prong of the other member 23 of the clutch. The outer ends of the members 23 are provided with recesses 23 which are received on the studs 21, between the collars 21". Each clutch member 23 is provided with a shoe 26 pivoted upon a pin in the bifurcated portion of the clutch. When the electrode carrying rod 15 is removed fromthe clutch, it will be seen that it can be readily taken apart and assembled in position, and when the rod 15 is inserted in the clutch the two members are locked in engaging relation. The upper ends of the two members of the armature 18 are provided with pistons 27 each :formingone element of the dash-pot, the other element 28 of which is pivoted to rods 29 depending from the stationary portion 'of the lamp. In addition to the lifting clutch, which has just been described, the lamp is provided with a holding clutch 30, comprising an outwardly projecting arm 31 which cooperates with a stop 32. The lower end of a retractile spring 33 is connected to the outer end-of the 'arm'31, while its upper end is secured to the stationary portion of the lamp. The details of the operating portions of the lamp are fully shown in patent to Halvorson No. 913,209, reference to which may be made for fuller details. The cut-out magnets are indicated at 34, which through a pair of cotiperating contacts 36 and 37, control the circuit through the magnets 17. In series relation with the magnets is the resistance 35. The upper plate 4 is annular, as shown, and above it is mounted a circular casing 38, upon which is mounted an inner cone 39-, which at its upper end forms a guide for the upper end of the lower electrode, and also an outer cone 40,

the diameter of the upper end 'of which is larger than. that of the lower electrode and forms a suitable nozzle for a draft about the lower electrode and which envelops the arc. These two cones are suitably insulated from the casing 38 by insulating washers 39 and 40*, which are held by bolts against the lower and upper sides, respectively, of the flange formed at the top of the casing 38, as shown in Fig. 1. It will be understood,

' of course, that if no draft is desirable, a

single cone or other guiding member for nozzle. The casing 38 is turned outwardly at its lower edge over the plate 4, and is then turned downwardly and again outwardly to form a ledge 38 upon which is seated an insulating ring 6.

The globe 7 is open at its upper end, which opening is closed by a plate 41, carrying a chimney for the fumes. The upper. portion 42 of the chimney is located above the plate, while the lower portion 43 underneath the plate is enlarged to form a fume pot, into Which the products of combustion from the arc pa% and are carried through the chimney from the lamp. The plate 41 is held in engagement with the globe by clips 44, which engage the globe on its inner surface and are held against the same by screws 45. The fume pot is provided with projecting lugs 46 and 47, within which is received and secured the supporting rod 48 for the chimney and the parts connected thereto. The rod 48 is also received and is guided by a tube 49 which is secured to but insulated from plate 3 at 50. This tube also passes through and is braced by a metal sleeve 49 which is secured to but insulated from the plate 4, by insulation 49. The upper end of the tube 49 is provided with a projecting arm 51, the outer end of which is provided with an opening for receiving a pin 52 secured to the lug 47 and projecting downwardly therefrom. The lower end of the rod 48 is formed with a longitudinal groove 53, while the extreme lower end has a transverse slot 54, registering with the groove 53. At some point between the plates 3 and 4 the sleeve 49 is provided with a longitudinal opening 55, through which the upper curled end of a stiff wire 56 projects which is formed so as to provide a goodsupport for the chimney when the same is in the raised position, and at the same time offer little resistance to the movement of the supporting rod over the same. ThlS wire is carried by a plate 57, which in turn is secured to the sleeve 49 by set screws 58. The plate 57 is formed with a lug'59, which projects through the opening 55 and engages the groove 53 in the rod 48 and thus prevents the turning of the upper electrode which is supported by the rod 48. The top of the globe is surmounted by a casing 60 upon which is mounted a cowl 61, the whole being so designed with reference to the globe, the casing and the supporting post as to present a pleasing appearance.

The diagram of connections is shown in Fig. 8. The lead'wires are indicated at 62 and 63. The leading-in wire 62 is connected to one terminal of the operating magnet 17 by a conductor 64, including the resistance 35. The other terminal of the magnet 17 is connected by a conductor 65 through a conductor 66 to the armature of the shunt coil 34", the armature being in electrical connection with the lower contact 37. The upper contact 36 is connected by a conductor 67 to the leading-out wire 63. The leading-in wire is also connected by a conductor 68 to the upper electrode 14, while the lower electrode, 13 is connected by a conductor 69 to the series coil 34 of the cut-out the other terminal of the coil being connected to the leading-out wire 63.

The operation of my lamp is as follows:- When the lamp is without current, the lower electrode is separated from the upper electrode by gravity as indicated in Fig. 8, while contacts 36 and 37 are in engagement. Now, when current is turned on the lamp, the electrodes being separated, the only 'path for the current is through the operating magnet 17 and the contacts 36 and 37. The magnet 17 is thereby energized, lifting the armature and the lower electrode 13 into engagement with the upper electrode 14, During this movement of the lower electrode, the holding clutch is lifted by the spring 33 until the arm 31 engages the stop 32. When the arm 31 thus engages the stop 32, however, the lower electrode is free to continue its upward movement until it engages the upper electrode, the operation here being the same as in the patent to Halvorson, No. 9l3, 209,above referred to. When the lower electrode engages the upper electrode, a short circuit is formed about the operating magnets of the lamp through the upper and lower electrodes and the series coil of the cut-out. The series coil 34 therethefdistance which the holding clutch 30 is permitted to drop away from the stop 32.

The arc then continues to burn until it becomes of such a length that, its resistance and the voltage drop across the same are so great as to cause the shunt coil 34 of the cut-out to lift the lower contact 37 into engagement with the contact 36, when the circuit through the magnets 17 is again closed and the cycle of operations isrepeated.

When it is desired to trim the lamp, the

chimney andthe parts connected thereto, in-

cluding the globe, if desired, and the casing surmounting the same, may be lifted, to-

gether with the supporting rod 48, until the lower end of the rod 48 is above the wire 56.

' By rotating the parts carried by the rod 48 through an angle of 180, the solid portion of the lower end of the rod 48 adjacent the groove 53 is made to engage the arm 56, by wh ch means the rod 48 and the parts carnot, however, claim broadly the combination of a support and an arc lamp mounted upon the support, the operating mechanism being surrounded by a casing which is removable to afford access to the operating mechanism of the lamp. Neither do I claim the specific form of globe, as this is the invention of the said Cromwell A. B. Halvorson, Jr. 1

i What I claim as new and desire to secure by Letters Patent of the United States is 1. In combination a support, an insulating member located upon the support, an arc lamp frame supported upon the insulating member, an arc inclosing globe located above the lamp frame, an o erating mechanism for the lamp supporte upon the frame below the globe, and a casing surrounding the operating mechanism and adapted to telescope over the insulating member and said support whereby access may be had to said operating mechanism.

2. In combination, a support, an insulating member located upon the'support, an arc lamp frame supported upon the insulating member, an arc inclosing globe located above the lamp frame, an operating mechanism for the lamp supported upon the frame below the globe, a casing surrounding the operating mechanism and adapted to telescope over the support, releasable means for supporting the casing upon the insulating member and about the operating mechanism, and means for supporting the casing upon the insulating member when the same is lowered.

3. In combinatlon, a support, an arc lamp mechanism comprising a frame and an op- ,erating mechanism mounted upon the insulating member, an arc inclosing globe mounted upon said frame above the operat ing mechanism, a casing adapted to surround said operating mechanism and to telescope over the support, releasable catches adapted to engage theinsulating member to support the casing about 'the operating mechanism, said casing being provided'with an inwardly extending flange for supporting the casing in its lowered position.

4. In combination, a support, an insulating member'located upon the support, an arc lamp mechanism comprising a supporting frame and an operating mechanism supported upon said insulating member and above the same, an arc inclosing globe located upon said frame above the operating mechanism, a casing surrounding the operating mechanism, latches for supporting said casing about the operating mechanism, and an annular flange located near the top of the casing and having a diameter less than that of the insulating member.

5. In an arc lamp, a lamp support, a lower electrode, a cooperating upper electrode, and a support for the upper electrode comprising two cylindrical telescoping members one of which is secured to the lamp support and the other carryingthe upper electrode, and means for feeding the lower electrode.

6. In combination, a support, a lower consuming electrode, an upper non-consuming electrode, a pair of cylindrical telescoping members eccentric to the axis of the electrodes one of which is secured to said support and the other carrying the upper electrode, whereby the upper electrode may be lifted and laterally shiftedaway from the lower one, and means for locking the upper electrode in its new position.

7." In an arc lamp, the combination of a lamp support, a globe open at the top and bottom seated on a member carried by the support, a lower electrode, an upper electrode supported in a fume box, the latter projecting through the top opening of theglobe and secured to the globe, means for box, whereby the upper electrode, globe and fume box may be raised and swung about the axis of the telescoping member.

8. In an arc lamp, the combination of a lamp support, a globe open at the top and bottom seated on a member carried by the support, a lower electrode, an upper electrode supported in a fume box, the latter projecting through the top opening of the globe and secured to the globe, means for supporting the fume box, comprising two telescoping members eccentric to the axis of the electrodes, one ofwhich is fixed to the support and the other connected to the fume box, whereby the upper electrode, globe and fume box may be raised and swung about the axis of the telescoping member, and means for locking the raised parts in the new position.

In witness whereof, I.have hereunto set my hand this 21st day of November, 1911.

JOHN T. BEECHLYN. lVitnesses JoHN A. MCMANUS, J r., FRANK G. HATTIE. 

